Hydrogen production energy storage system

Abstract

The invention discloses a hydrogen production energy storage system which comprises a bottom frame, a tank body assembly, a compression mechanism, a pressure relief mechanism and a pressure equalizing mechanism, the tank body assembly comprises an outer tank, an inner tank, an air inlet valve pipe and an air pressure sensor, the compression mechanism comprises an assembly frame and a hydrogen discharge pipe, the pressure relief mechanism comprises a side frame, a main valve and a pilot valve, the main valve comprises a first valve body, and the pilot valve comprises a second valve body. A first bottom hole is formed in the first valve body, the pilot valve comprises a servo motor, the pressure equalizing mechanism comprises an annular frame and a second motor, the outer tank is fixedly connected with the inner tank, the assembling frame and the side frame, the air inlet valve pipe is connected with the inner tank and the hydrogen discharging pipe through pipelines, the inner tank is connected with the first bottom hole through a pipeline, and the inner tank is rotationally connected with the annular frame. The air pressure sensor is connected with the servo motor and the second motor through electric signals; the invention relates to the technical field of high-pressure hydrogen storage tanks. The high-pressure hydrogen storage tank can compress hydrogen in a multi-stage mode, improve the compression efficiency and the hydrogen purity, relieve the load of a compressor, detect the internal air pressure and actively relieve and equalize pressure to ensure the safety of the tank body, and explosion is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure hydrogen storage tanks, and in particular to a hydrogen production and energy storage system. Background Art

[0002] High-pressure hydrogen storage technology is a technical means of compressing hydrogen under high-pressure conditions and storing it in a container with high-pressure resistance. Specifically, hydrogen is compressed by a compressor until its pressure reaches the high-pressure standard that can be loaded into the hydrogen storage container, and then it is stored in a specially designed and manufactured pressure-resistant container. It is one of the most commonly used hydrogen storage technology categories and has high reliability.

[0003] If a high-pressure container is damaged or leaks, high-pressure hydrogen will be released in large quantities in an instant, which is likely to cause a serious safety accident. During the storage of high-pressure hydrogen, it is necessary to monitor and dynamically adjust the air pressure inside the container in real time to prevent explosion accidents. Since the energy density of hydrogen itself is relatively low, conventional compressors often need to be set up in multiple groups to meet the requirements, and their energy consumption is high. When the pressure reaches a high level, the energy consumption will show an exponential growth trend. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrogen production and energy storage system to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrogen production and energy storage system includes a base frame, a tank assembly, a compression mechanism, a pressure relief mechanism and a pressure equalizing mechanism, the tank assembly includes an outer tank, an inner tank, an air intake valve pipe and an air pressure sensor, the compression mechanism includes an assembly frame and a hydrogen discharge pipe, the pressure relief mechanism includes a side frame, a main valve and a pilot valve, the main valve includes a first valve body, a first bottom hole is provided on the first valve body, the pilot valve includes a servo motor, the pressure equalizing mechanism includes a ring frame and a second motor, the outer tank is fixedly connected to the inner tank, the assembly frame and the side frame, the air intake valve pipe is connected to the inner tank and the hydrogen discharge pipe through a pipeline, the inner tank is connected to the first bottom hole through a pipeline, the inner tank is rotatably connected to the ring frame, and the air pressure sensor is connected to the servo motor and the second motor through electrical signals.

[0006] The present invention is a high-pressure storage device suitable for hydrogen. Hydrogen is introduced into a compression mechanism, compressed through multi-stage compression, and loaded into an inner tank in a high-pressure state through a hydrogen discharge pipe. A pressure sensor detects the pressure distribution in various places in the inner tank in real time, and sends an electrical signal to a second motor. The pressure equalizing mechanism rotates under the drive of the hydrogen introduced, and the high-pressure hydrogen is evenly distributed in the inner tank to avoid damage caused by uneven pressure in the inner tank. When the pressure sensor detects that the air pressure in the inner tank increases abnormally, it sends an electrical signal to the servo motor. The servo motor adjusts the sensitivity of the pilot valve, so that the pilot valve links the main valve to open as the air pressure increases, and the inner tank is urgently depressurized to ensure that the pressure in the inner tank will not be over-pressured and cause an explosion.

[0007] Furthermore, the tank assembly also includes an exhaust valve pipe, a heat exchange coil and a temperature sensor. The outer tank is provided with an air inlet, an exhaust port and a heat exchange hole. The air inlet is fixedly connected to the air inlet valve pipe, the exhaust valve pipe is fixedly connected to the exhaust port, the heat exchange coil is fixedly connected to the heat exchange hole, the temperature sensor and the air pressure sensor are both fixedly connected to the inner tank, and the air pressure sensor is provided in several groups, and the several groups of air pressure sensors are linearly evenly distributed along the axis of the inner tank.

[0008] The hydrogen compressed to a high-pressure state in the compression mechanism is introduced into the inner tank through the intake valve pipe and the air inlet. The temperature is monitored in real time by a temperature sensor. A number of pressure sensors linearly distributed along the axis of the inner tank monitor the air pressure at various locations in the inner tank in real time. When hydrogen needs to be extracted, the exhaust valve pipe is opened to discharge the hydrogen. The temperature control medium is circulated through the heat exchange winding pipe to ensure that the temperature of the inner tank is constant, thereby avoiding explosion caused by rising hydrogen pressure in a high-temperature environment.

[0009] Furthermore, the compression mechanism also includes a shell, a first motor, an eccentric shaft, a hydrogen inlet pipe and a vortex mechanism. The vortex mechanism is provided with several groups, and the several groups of vortex mechanisms are linearly evenly distributed along the axis of the shell. The vortex mechanism includes a fixed disk, an eccentric disk and a limit ring. The limit ring is provided with a sliding hole. The hydrogen inlet pipe is slidably connected to a group of sliding holes away from the hydrogen exhaust pipe. The shell is fixedly connected to the assembly frame, the first motor and the fixed disk. The eccentric shaft is fixedly connected to the output end of the first motor and a group of eccentric disks away from the hydrogen exhaust pipe. A vent is provided on the fixed disk. The shell is provided with a first through hole and a second through hole. The first through hole is fixedly connected to the hydrogen inlet pipe, and the hydrogen exhaust pipe is fixedly connected to the second through hole and a group of vents away from the first motor.

[0010] The first motor outputs a fixed-axis torque to the eccentric shaft, and an eccentric disk is installed at one end of the eccentric shaft away from the first motor. The end of the eccentric shaft away from the first motor performs eccentric circular motion, and the eccentric shaft transmits torque to the eccentric disk to perform eccentric circular motion. Hydrogen is introduced through the hydrogen inlet pipe, the first through hole, and a group of sliding holes away from the hydrogen exhaust pipe. The hydrogen is compressed in a group of eccentric disks, fixed disks, and limit circles away from the hydrogen exhaust pipe as the eccentric disk performs eccentric circular motion, and is introduced into the next-stage vortex compression mechanism through the vents and sliding holes between two adjacent groups of vortex compression mechanisms. The hydrogen that has completed multiple compressions in the multi-stage vortex compression mechanism is introduced into the intake valve pipe through a group of vents and the hydrogen exhaust pipe away from the first motor.

[0011] Furthermore, the vortex pressure mechanism also includes a first vortex rail, a second vortex rail, a first spring, a limit ring, a second spring and an eccentric column. A limit frame is also provided on the fixed disk, a protrusion and a through groove are provided on the eccentric disk, and a protrusion is also provided on the limit ring. The first vortex rail is fixedly connected to the fixed disk, the second vortex rail is fixedly connected to the eccentric disk and the eccentric column, the eccentric column is fixedly connected to the adjacent eccentric disk, the eccentric column is in contact with the vent, the limit ring is in contact with the fixed disk, the eccentric disk and the first vortex rail, the first spring is fixedly connected to the limit frame and the protrusion, the limit frame is slidably connected to the protrusion, the second spring is fixedly connected to the through groove and the protrusion, and the through groove is slidably connected to the protrusion.

[0012] External hydrogen enters through the hydrogen inlet pipe, the first through hole, and a group of sliding holes away from the hydrogen exhaust pipe. The eccentric disk performs eccentric circular motion. The protrusion moves back and forth in the limit frame to squeeze the first spring. The outer edge of the second vortex track contacts the limit ring. The protrusion moves back and forth in the through groove to squeeze the second spring. The eccentric disk is equipped with the second vortex track. The second vortex track performs eccentric circular motion. The limit frame and the through groove work together to limit the eccentric circular motion of the eccentric disk and the limit ring, and limit the rotation of the eccentric disk. The first vortex track is fixedly assembled on the fixed disk. As the second vortex track performs eccentric circular motion relative to the first vortex track, the second vortex track and the first vortex track The two vortex rails mesh with each other to form a number of dynamically changing crescent-shaped chambers. The hydrogen is in a sealed space composed of an eccentric disk, a fixed disk, and a limit ring far away from the hydrogen exhaust pipe. The hydrogen located at the outer edge of the second vortex rail is compressed step by step by multiple chambers. Finally, the compressed hydrogen is squeezed to the center of the vortex circle and passes into the next-level vortex mechanism through the vents and sliding holes between the two adjacent groups of vortex pressure mechanisms. The eccentric column is equipped with the second vortex rail and the adjacent eccentric disk. The eccentric column performs eccentric circular motion in the vent along with the second vortex rail. The eccentric column transmits the eccentric circular motion torque to the adjacent eccentric disk. The hydrogen completes multiple compressions in the multi-stage vortex pressure mechanism.

[0013] Furthermore, the pressure relief mechanism also includes a throttle, the main valve also includes a first valve cover, the pilot valve also includes a second valve body, the first valve body is further provided with a first side hole, the first valve cover is provided with a second side hole, the second valve body is provided with a second bottom hole and a third side hole, the throttle is connected to the first side hole and the second bottom hole through a pipeline, and the second side hole is connected to the third side hole through a pipeline.

[0014] The first bottom hole on the first valve body is connected to the inner tank through a pipeline. When the gas pressure in the inner tank is within the threshold range, the high-pressure hydrogen in the inner tank flows back to the main valve through the first side hole, the throttle, the second valve body, and the third side hole. At this time, the main valve is in a closed state.

[0015] Furthermore, the main valve also includes a third spring and a valve core cover. The first valve body is also provided with a first pressure relief port, which is arranged on a side of the first valve body away from the first side hole. The first valve cover is fixedly connected to the first valve body, the third spring is fixedly connected to the first valve cover and the valve core cover, the valve core cover is slidably connected to the first valve cover and the first valve body, the first valve cover and the upper side of the valve core cover form a main air chamber, and the first valve body and the lower side of the valve core cover form a pressure inlet chamber.

[0016] When the air pressure in the inner tank is within the threshold range, the pilot valve is closed, and the high-pressure hydrogen in the main valve is passed through the first bottom hole, and flows back to the main air chamber through the first side hole, the throttle, the second valve body, and the third side hole. At this time, the air pressure in the main air chamber is equal to that in the pressure-inducing chamber. The valve core cover is sealed and contacts the first valve body under the action of the third spring, so that the first pressure relief port is not connected, and the hydrogen in the pressure-inducing chamber cannot push open the valve core cover. The high-pressure hydrogen in the inner tank is not connected to the outside world. When the air pressure rises abnormally, the pilot valve is opened, and the hydrogen in the main air chamber is The hydrogen in the pressure chamber passes through the first side hole and the throttle into the pilot valve for discharge. Since the throttle blocks the discharge of the hydrogen in the pressure chamber, the discharge rate of the hydrogen in the main air chamber is much greater than that in the pressure chamber. The air pressure in the pressure chamber is greater than that in the main air chamber. The valve core cover moves toward the direction close to the first valve cover to squeeze the third spring. The hydrogen in the main air chamber is discharged into the outside through the first pressure relief port. As the air pressure decreases, the pilot valve closes to achieve the effect of emergency pressure relief.

[0017] Furthermore, the pilot valve also includes a second valve cover, a fourth spring and a valve core column. The second valve cover is fixedly connected to the second valve body and the servo motor. The second valve body is also provided with a second pressure relief port. The second pressure relief port is arranged on the side of the second valve body away from the third side hole. The fourth spring is fixedly connected to the output end of the servo motor and the valve core column. The valve core column is slidably connected to the second valve cover and the second valve body.

[0018] When the air pressure in the inner tank rises abnormally, the hydrogen pressure in the second valve body overcomes the set pressure of the fourth spring, and the hydrogen pressure pushes the valve core column to move toward the second valve cover. The valve core column squeezes the fourth spring, and the valve core column no longer blocks the second pressure relief port, so that the pilot valve is connected to the outside world. The servo motor outputs torque to twist the fourth spring away from one end of the valve core column, thereby changing the set pressure of the fourth spring and adjusting the sensitivity of the pilot valve.

[0019] Furthermore, the pressure equalizing mechanism also includes a first gear, a second gear, fan blades and a crank. The second motor is fixedly connected to the ring frame. The fan blades and the crank are provided with several groups. The several groups of fan blades and the crank are evenly distributed along the circumference of the ring frame. The output end of the second motor is fixedly connected to the first gear. The first gear is meshed with the tooth surface of the second gear. The second gear is fixedly connected to a group of fan blades. The fan blades are rotatably connected to the ring frame, and the fan blades are hinged to the crank.

[0020] The hydrogen compressed to a high-pressure state is passed into the inner tank through the intake valve pipe and the air inlet. The high-pressure hydrogen blows on the fan blades, causing the ring frame to rotate as a whole. When the air pressure sensor detects that the pressure distribution in the inner tank is uneven, it sends an electrical signal to the second motor. The second motor outputs a fixed-axis torque to the first gear, and the first gear meshes with the tooth surface of the second gear to transmit the torque to a group of fan blades, causing the fan blades to rotate around their own axes. Several groups of fan blades evenly distributed along the circumference of the ring frame are synchronized by crank hinges. When the inclination angle between the fan blades and the ring frame increases, the high-pressure hydrogen passing through the fan blades is accelerated to diffuse to the inner wall of the inner tank, so that the hydrogen in the inner tank is evenly distributed.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention designs a compression mechanism, through which the fixed-axis torque is output by the first motor to the eccentric disk to perform eccentric circular motion, the second vortex track meshes with the first vortex track to form a plurality of dynamically changing chambers, and the hydrogen on the outer edge is compressed step by step by multiple chambers and squeezed toward the center of the vortex circle, and passes into the next stage through the air vents between the two adjacent groups, and the eccentric column transmits the torque to the eccentric disk of the next stage, and the hydrogen completes multiple compressions. By designing a multi-stage interconnected vortex compressed hydrogen, the compression efficiency and hydrogen purity are improved, while the load on the compressor is reduced and the service life is extended; the present invention designs a pressure relief mechanism, when the air pressure in the inner tank is within the threshold value, the pilot valve is closed, and the hydrogen flows back to the main air chamber through the first side hole, the throttle, and the second valve body. The air pressure in the main air chamber is equal to that in the pressure induction chamber, the valve core cover is sealed, the first pressure relief port is not connected, and when the air pressure rises abnormally, the hydrogen pressure overcomes the set pressure of the fourth spring, and the valve core column The valve core cover is displaced, and the hydrogen in the main air chamber is discharged into the outside through the first pressure relief port. As the air pressure decreases, the pilot valve is closed to achieve the function of emergency pressure relief and ensure the safety of the tank body. The present invention designs an air equalization mechanism. When the inclination angle between the fan blades and the ring frame increases, the high-pressure hydrogen passing through the fan blades is accelerated to diffuse to the inner wall of the inner tank, so that the hydrogen in the inner tank is evenly distributed, and damage caused by uneven pressure of the inner tank is avoided. The present invention can compress hydrogen in multiple stages, improve compression efficiency and hydrogen purity, reduce the load of the compressor, detect the internal air pressure, and actively release and equalize the pressure to ensure the safety of the tank body without explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the tank assembly structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the compression mechanism structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the vortex mechanism of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the pressure relief mechanism of the present invention;

[0027] Figure 6 It is a partial cross-sectional view of the pressure relief mechanism of the present invention;

[0028] Figure 7 for Figure 6 A local enlarged schematic diagram of area A;

[0029] Figure 8 It is a schematic diagram of the structure of the pressure equalizing mechanism of the present invention.

[0030] In the figure: 1, chassis; 2, tank assembly; 21, outer tank; 211, air inlet; 212, exhaust port; 213, heat exchange hole; 22, inner tank; 23, air inlet valve pipe; 24, exhaust valve pipe; 25, heat exchange coil; 26, temperature sensor; 27, air pressure sensor; 3, compression mechanism; 31, assembly frame; 32, shell; 321, first through hole; 322, second through hole; 33, first motor; 34, eccentric shaft; 35, hydrogen inlet pipe; 36, hydrogen exhaust pipe; 37, vortex mechanism; 371, fixed plate; 3711, vent hole; 3712, limit frame; 372, eccentric plate; 3721, convex block; 3722, through groove; 373, first vortex track; 374, second vortex track; 375, second spring; 376, limit ring; 3761, convex column; 3762, Sliding hole; 377, second spring; 378, eccentric column; 4, pressure relief mechanism; 41, side frame; 42, main valve; 421, first valve body; 4211, first bottom hole; 4212, first side hole; 4213, first pressure relief port; 422, first valve cover; 4221, second side hole; 423, third spring; 424, valve core cover; 425, main air chamber; 426, pressure guiding chamber; 43, pilot valve; 431, second valve body; 4311, second bottom hole; 4312, third side hole; 4313, second pressure relief port; 432, second valve cover; 433, fourth spring; 434, servo motor; 435, valve core column; 44, throttle; 5, pressure equalizing mechanism; 51, ring frame; 52, second motor; 53, first gear; 54, second gear; 55, fan blade; 56, crank. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 8 The present invention provides a technical solution of a hydrogen production and energy storage system, including a base frame 1, a tank assembly 2, a compression mechanism 3, a pressure relief mechanism 4 and a pressure equalization mechanism 5, wherein the tank assembly 2 includes an outer tank 21, an inner tank 22, an air intake valve pipe 23 and an air pressure sensor 27, the compression mechanism 3 includes an assembly frame 31 and a hydrogen exhaust pipe 36, the pressure relief mechanism 4 includes a side frame 41, a main valve 42 and a pilot valve 43, the main valve 42 includes a first valve body 421, and the first valve body 421 is provided with a first bottom hole 42 11, the pilot valve 43 includes a servo motor 434, the pressure equalizing mechanism 5 includes a ring frame 51 and a second motor 52, the outer tank 21 is fixedly connected to the inner tank 22, the assembly frame 31, and the side frame 41, the intake valve pipe 23 is connected to the inner tank 22 and the hydrogen exhaust pipe 36 through a pipeline, the inner tank 22 is connected to the first bottom hole 4211 through a pipeline, the inner tank 22 is rotatably connected to the ring frame 51, and the air pressure sensor 27 is connected to the servo motor 434 and the second motor 52 through electrical signals.

[0033] The present invention is a high-pressure storage device suitable for hydrogen. Hydrogen is introduced into a compression mechanism 3, compressed through multi-stage compression, and loaded into an inner tank 22 in a high-pressure state through a hydrogen discharge pipe 36. An air pressure sensor 27 detects the pressure distribution at various locations in the inner tank 22 in real time, and sends an electrical signal to a second motor 52. The pressure equalizing mechanism 5 rotates under the drive of the hydrogen introduced, and evenly distributes the high-pressure hydrogen in the inner tank 22 to avoid damage to the inner tank 22 due to uneven pressure. When the air pressure sensor 27 detects that the air pressure in the inner tank 22 increases abnormally, an electrical signal is sent to a servo motor 434. The servo motor 434 adjusts the sensitivity of the pilot valve 43, so that the pilot valve 43 links the main valve 42 to open as the air pressure increases, and the inner tank 22 is urgently depressurized to ensure that the pressure in the inner tank 22 will not be over-pressured and cause an explosion.

[0034] like Figure 2As shown, the tank assembly 2 also includes an exhaust valve pipe 24, a heat exchange coil 25 and a temperature sensor 26. The outer tank 21 is provided with an air inlet 211, an exhaust port 212 and a heat exchange hole 213. The air inlet 211 is fixedly connected to the air inlet valve pipe 23, the exhaust valve pipe 24 is fixedly connected to the exhaust port 212, the heat exchange coil 25 is fixedly connected to the heat exchange hole 213, the temperature sensor 26 and the air pressure sensor 27 are both fixedly connected to the inner tank 22, and the air pressure sensor 27 is provided with several groups, and the several groups of air pressure sensors 27 are linearly evenly distributed along the axis of the inner tank 22.

[0035] The hydrogen compressed to a high-pressure state in the compression mechanism 3 is introduced into the inner tank 22 through the intake valve pipe 23 and the air inlet 211. The temperature is monitored in real time by the temperature sensor 26. A number of air pressure sensors 27 linearly distributed along the axis of the inner tank 22 monitor the air pressure at various locations in the inner tank 22 in real time. When hydrogen needs to be extracted, the exhaust valve pipe 24 is opened to discharge the hydrogen. The temperature control medium is circulated through the heat exchange bypass 25 to ensure that the temperature of the inner tank 22 is constant, thereby avoiding explosion caused by rising hydrogen pressure in a high-temperature environment.

[0036] like Figure 3 , Figure 4 As shown, the compression mechanism 3 also includes a housing 32, a first motor 33, an eccentric shaft 34, a hydrogen inlet pipe 35 and a vortex mechanism 37. The vortex mechanism 37 is provided with a plurality of groups, and the plurality of groups of vortex mechanisms 37 are linearly evenly distributed along the axis of the housing 32. The vortex mechanism 37 includes a fixed disk 371, an eccentric disk 372 and a limit ring 376. The limit ring 376 is provided with a sliding hole 3762. The hydrogen inlet pipe 35 is slidably connected with a group of sliding holes 3762 away from the hydrogen exhaust pipe 36. The housing 32 is connected to the assembly frame. 31, the first motor 33 and the fixed disk 371 are all fixedly connected, the eccentric shaft 34 is fixedly connected to the output end of the first motor 33 and a group of eccentric disks 372 away from the hydrogen exhaust pipe 36, a vent hole 3711 is provided on the fixed disk 371, and a first through hole 321 and a second through hole 322 are provided on the outer shell 32, the first through hole 321 is fixedly connected to the hydrogen inlet pipe 35, and the hydrogen exhaust pipe 36 is fixedly connected to the second through hole 322 and a group of vent holes 3711 away from the first motor 33.

[0037] The first motor 33 outputs a fixed-axis torque to the eccentric shaft 34. An eccentric disc 372 is installed at one end of the eccentric shaft 34 away from the first motor 33. The end of the eccentric shaft 34 away from the first motor 33 performs eccentric circular motion. The eccentric shaft 34 transmits torque to the eccentric disc 372 to perform eccentric circular motion. Hydrogen is introduced through the hydrogen inlet pipe 35, the first through hole 321, and a group of sliding holes 3762 away from the hydrogen exhaust pipe 36. The hydrogen is compressed in a group of eccentric discs 372, a fixed disc 371, and a limiting ring 376 away from the hydrogen exhaust pipe 36 as the eccentric disc 372 performs eccentric circular motion. The hydrogen is introduced into the next-stage vortex mechanism 37 through the vent holes 3711 and the sliding holes 3762 between two adjacent groups of vortex mechanisms 37. The hydrogen that has completed multiple compressions in the multi-stage vortex mechanism 37 is introduced into the intake valve pipe 23 through the group of vent holes 3711 away from the first motor 33 and the hydrogen exhaust pipe 36.

[0038] like Figure 4 As shown, the vortex pressure mechanism 37 also includes a first vortex rail 373, a second vortex rail 374, a first spring 375, a limiting ring 376, a second spring 377 and an eccentric column 378. The fixed disk 371 is also provided with a limiting frame 3712, the eccentric disk 372 is provided with a protrusion 3721 and a through groove 3722, and the limiting ring 376 is also provided with a protrusion 3761. The first vortex rail 373 is fixedly connected to the fixed disk 371, and the second vortex rail 374 is fixedly connected to the eccentric disk 372 and the eccentric column 378. The eccentric column 378 is fixedly connected to the adjacent eccentric disk 372, the eccentric column 378 contacts the vent hole 3711, the limiting ring 376 contacts the fixed disk 371, the eccentric disk 372, and the first spiral rail 373, the first spring 375 is fixedly connected to the limiting frame 3712 and the protrusion 3721, the limiting frame 3712 is slidably connected to the protrusion 3721, the second spring 377 is fixedly connected to the through groove 3722 and the protrusion 3761, and the through groove 3722 is slidably connected to the protrusion 3761.

[0039] External hydrogen enters through the hydrogen inlet pipe 35, the first through hole 321, and a group of sliding holes 3762 away from the hydrogen exhaust pipe 36. The eccentric disk 372 performs eccentric circular motion. The protrusion 3721 moves back and forth in the limiting frame 3712 to squeeze the first spring 375. The outer edge of the second spiral track 374 contacts the limiting ring 376. The protrusion 3761 moves back and forth in the through groove 3722 to squeeze the second spring 377. The eccentric disk 372 is equipped with the second spiral track 374, and the second spiral track 374 performs eccentric circular motion. The limiting frame 3712 and the through groove 3722 work together to limit the eccentric circular motion of the eccentric disk 372 and the limiting ring 376, and limit the rotation of the eccentric disk 372. The first spiral track 373 is fixedly assembled on the fixed disk 371. As the second spiral track 374 performs eccentric circular motion relative to the first spiral track 373 The second vortex track 374 meshes with the first vortex track 373 to form a number of dynamically changing crescent-shaped chambers. The hydrogen is in a sealed space composed of a group of eccentric disks 372, fixed disks 371, and limit rings 376 away from the hydrogen exhaust pipe 36. The hydrogen located at the outer edge of the second vortex track 374 is compressed step by step by multiple chambers. Finally, the compressed hydrogen is squeezed to the center of the vortex circle and passes through the vents 3711 and the sliding holes 3762 between the two adjacent groups of vortex pressure mechanisms 37 into the next-stage vortex pressure mechanism 37. The eccentric column 378 is equipped with the second vortex track 374 and the adjacent eccentric disk 372. The eccentric column 378 performs eccentric circular motion in the vent 3711 along with the second vortex track 374. The eccentric column 378 transmits the eccentric circular motion torque to the adjacent eccentric disk 372. The hydrogen is compressed multiple times in the multi-stage vortex pressure mechanism 37.

[0040] like Figure 5 As shown, the pressure relief mechanism 4 also includes a throttle 44, the main valve 42 also includes a first valve cover 422, the pilot valve 43 also includes a second valve body 431, the first valve body 421 is also provided with a first side hole 4212, the first valve cover 422 is provided with a second side hole 4221, the second valve body 431 is provided with a second bottom hole 4311 and a third side hole 4312, the throttle 44 is connected to the first side hole 4212 and the second bottom hole 4311 through a pipeline, and the second side hole 4221 is connected to the third side hole 4312 through a pipeline.

[0041] The first bottom hole 4211 on the first valve body 421 is connected to the inner tank 22 through a pipeline. When the gas pressure in the inner tank 22 is within the threshold range, the high-pressure hydrogen in the inner tank 22 flows back to the main valve 42 through the first side hole 4212, the throttle 44, the second valve body 431, and the third side hole 4312. At this time, the main valve 42 is in a closed state.

[0042] like Figure 6 , Figure 7As shown, the main valve 42 also includes a third spring 423 and a valve core cover 424. The first valve body 421 is also provided with a first pressure relief port 4213. The first pressure relief port 4213 is arranged on the side of the first valve body 421 away from the first side hole 4212. The first valve cover 422 is fixedly connected to the first valve body 421. The third spring 423 is fixedly connected to the first valve cover 422 and the valve core cover 424. The valve core cover 424 is slidably connected to the first valve cover 422 and the first valve body 421. The upper side of the first valve cover 422 and the valve core cover 424 constitutes a main air chamber 425, and the lower side of the first valve body 421 and the valve core cover 424 constitutes a pressure inlet chamber 426.

[0043] When the air pressure in the inner tank 22 is within the threshold range, the pilot valve 43 is closed, and the high-pressure hydrogen in the main valve 42 is passed through the first bottom hole 4211, and flows back to the main air chamber 425 through the first side hole 4212, the throttle 44, the second valve body 431, and the third side hole 4312. At this time, the air pressure in the main air chamber 425 is equal to that in the pressure-inducing chamber 426. The valve core cover 424 is sealed and contacts the first valve body 421 under the action of the third spring 423, so that the first pressure relief port 4213 is not connected. The hydrogen in the pressure-inducing chamber 426 cannot push open the valve core cover 424, and the high-pressure hydrogen in the inner tank 22 is not connected to the outside. When the air pressure rises abnormally, the pilot valve 43 is opened, and the air in the main air chamber 425 is The hydrogen enters the pilot valve 43 through the second side hole 4221 and is discharged, and the hydrogen in the pressure chamber 426 enters the pilot valve 43 through the first side hole 4212 and the throttle 44 and is discharged. Since the throttle 44 blocks the discharge of the hydrogen in the pressure chamber 426, the discharge rate of the hydrogen in the main air chamber 425 is much greater than the discharge rate of the hydrogen in the pressure chamber 426. The air pressure in the pressure chamber 426 is greater than the air pressure in the main air chamber 425. The valve core cover 424 moves toward the direction close to the first valve cover 422 to squeeze the third spring 423. The hydrogen in the main air chamber 425 is discharged into the outside through the first pressure relief port 4213. As the air pressure decreases, the pilot valve 43 is closed to achieve the effect of emergency pressure relief.

[0044] like Figure 7 As shown, the pilot valve 43 also includes a second valve cover 432, a fourth spring 433 and a valve core column 435. The second valve cover 432 is fixedly connected to the second valve body 431 and the servo motor 434. The second valve body 431 is also provided with a second pressure relief port 4313. The second pressure relief port 4313 is arranged on the side of the second valve body 431 away from the third side hole 4312. The fourth spring 433 is fixedly connected to the output end of the servo motor 434 and the valve core column 435. The valve core column 435 is slidably connected to the second valve cover 432 and the second valve body 431.

[0045] When the air pressure in the inner tank 22 rises abnormally, the hydrogen pressure in the second valve body 431 overcomes the set pressure of the fourth spring 433, and the hydrogen pressure pushes the valve core column 435 to move toward the second valve cover 432. The valve core column 435 squeezes the fourth spring 433. The valve core column 435 no longer blocks the second pressure relief port 4313, so that the pilot valve 43 is connected to the outside world. The servo motor 434 outputs torque to twist the fourth spring 433 away from one end of the valve core column 435, thereby changing the set pressure of the fourth spring 433 and adjusting the sensitivity of the pilot valve 43.

[0046] like Figure 8 As shown, the pressure equalizing mechanism 5 also includes a first gear 53, a second gear 54, a fan blade 55 and a crank 56. The second motor 52 is fixedly connected to the ring frame 51. The fan blades 55 and the crank 56 are each provided with a plurality of groups. The plurality of groups of fan blades 55 and the crank 56 are evenly distributed along the circumference of the ring frame 51. The output end of the second motor 52 is fixedly connected to the first gear 53. The first gear 53 is meshed with the tooth surfaces of the second gear 54. The second gear 54 is fixedly connected to a group of fan blades 55. The fan blades 55 are rotatably connected to the ring frame 51, and the fan blades 55 are hinged to the crank 56.

[0047] The hydrogen compressed to a high-pressure state is passed into the inner tank 22 through the intake valve pipe 23 and the air inlet 211. The high-pressure hydrogen blows on the fan blades 55, causing the ring frame 51 to rotate as a whole. When the air pressure sensor 27 detects that the pressure distribution in the inner tank 22 is uneven, an electrical signal is sent to the second motor 52. The second motor 52 outputs a fixed-axis torque to the first gear 53. Through the meshing of the tooth surfaces of the first gear 53 and the second gear 54, the torque is transmitted to a group of fan blades 55, causing the fan blades 55 to rotate around their own axes. Several groups of fan blades 55 evenly distributed along the circumference of the ring frame 51 are hinged and synchronized by the crank 56. When the inclination angle between the fan blades 55 and the ring frame 51 increases, the high-pressure hydrogen passing through the fan blades 55 is accelerated to diffuse to the inner wall of the inner tank 22, so that the hydrogen in the inner tank 22 is evenly distributed.

[0048] The working principle of the present invention is as follows: external hydrogen is introduced into the hydrogen inlet pipe 35, the first motor 33 outputs a fixed-axis torque to the eccentric disk 372 to make an eccentric circular motion, the outer edge of the second vortex track 374 contacts the limit ring 376, the second vortex track 374 and the first vortex track 373 mesh with each other to form a plurality of dynamically changing chambers, the hydrogen at the outer edge is compressed and squeezed toward the center of the vortex by multiple chambers step by step, and is introduced into the next stage through the vent hole 3711 between the two adjacent groups, the eccentric column 378 transmits the torque to the eccentric disk 372 of the next stage, and the hydrogen is compressed and introduced into the next stage multiple times. In the inner tank 22, a plurality of air pressure sensors 2 monitor the air pressure at various locations in the inner tank 22, and the exhaust valve pipe 24 is opened to discharge hydrogen. When the air pressure in the inner tank 22 is within the threshold range, the pilot valve 43 is closed, and the hydrogen in the pressure chamber 426 flows back to the main air chamber 425 through the first side hole 4212, the throttle 44, the second valve body 431, and the third side hole 4312. At this time, the air pressure in the main air chamber 425 is equal to that in the pressure chamber 426, and the valve core cover 424 seals and contacts the first valve body 421 to prevent the first pressure relief port 4213 from being connected. When the air pressure rises abnormally, The hydrogen pressure in the second valve body 431 overcomes the set pressure of the fourth spring 433, the hydrogen valve core column 435 is displaced, no longer blocking the second pressure relief port 4313, so that the pilot valve 43 is connected to the outside, and the servo motor 434 outputs a torque to twist the fourth spring 433, changing the set pressure of the fourth spring 433 and adjusting the sensitivity of the pilot valve 43. The hydrogen in the main air chamber 425 passes through the second side hole 4221 into the pilot valve 43 for discharge, and the hydrogen in the pressure chamber 426 passes through the first side hole 4212 and the throttle 44 into the pilot valve 4 3 is discharged. Since the throttle 44 blocks the hydrogen in the pressure chamber 426, the discharge speed of the hydrogen in the main air chamber 425 is much greater than the discharge speed of the hydrogen in the pressure chamber 426. The air pressure in the pressure chamber 426 is greater than that in the main air chamber 425. The valve core cover 424 moves and squeezes the third spring 423. The hydrogen in the main air chamber 425 is discharged to the outside through the first pressure relief port 4213. As the air pressure decreases, the pilot valve 43 is closed to achieve emergency pressure relief. The heat exchange coil 25 circulates the temperature control medium to ensure that the temperature of the inner tank 22 is constant, thereby avoiding explosion caused by the increase of hydrogen pressure in a high temperature environment.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A hydrogen production and energy storage system, characterized in that: The energy storage system comprises a base frame (1), a tank assembly (2), a compression mechanism (3), a pressure relief mechanism (4) and a pressure equalizing mechanism (5); the tank assembly (2) comprises an outer tank (21), an inner tank (22), an air intake valve pipe (23) and an air pressure sensor (27); the compression mechanism (3) comprises an assembly frame (31) and a hydrogen exhaust pipe (36); the pressure relief mechanism (4) comprises a side frame (41), a main valve (42) and a pilot valve (43); the main valve (42) comprises a first valve body (421); the first valve body (421) is provided with a first bottom hole (4211); the pilot valve (43) comprises a first bottom hole (4211) and a first bottom hole (4211) arranged on the first bottom hole (4211). The pilot valve (43) comprises a servo motor (434), the pressure equalizing mechanism (5) comprises a ring frame (51) and a second motor (52), the outer tank (21) is fixedly connected to the inner tank (22), the assembly frame (31) and the side frame (41), the air intake valve pipe (23) is connected to the inner tank (22) and the hydrogen exhaust pipe (36) through a pipeline, the inner tank (22) is connected to the first bottom hole (4211) through a pipeline, the inner tank (22) is rotatably connected to the ring frame (51), and the air pressure sensor (27) is connected to the servo motor (434) and the second motor (52) through electrical signals.

2. A hydrogen production and energy storage system according to claim 1, characterized in that: The tank assembly (2) further comprises an exhaust valve pipe (24), a heat exchange coil (25) and a temperature sensor (26); the outer tank (21) is provided with an air inlet (211), an exhaust port (212) and a heat exchange hole (213); the air inlet (211) is fixedly connected to the air inlet valve pipe (23); the exhaust valve pipe (24) is fixedly connected to the exhaust port (212); the heat exchange coil (25) is fixedly connected to the heat exchange hole (213); the temperature sensor (26) and the air pressure sensor (27) are both fixedly connected to the inner tank (22); the air pressure sensor (27) is provided in a plurality of groups, and the plurality of groups of air pressure sensors (27) are linearly evenly distributed along the axis of the inner tank (22).

3. A hydrogen production and energy storage system according to claim 1, characterized in that: The compression mechanism (3) further comprises a housing (32), a first motor (33), an eccentric shaft (34), a hydrogen inlet pipe (35) and a vortex mechanism (37). The vortex mechanism (37) is provided with a plurality of groups, and the plurality of groups of vortex mechanisms (37) are linearly evenly distributed along the axis of the housing (32). The vortex mechanism (37) comprises a fixed disk (371), an eccentric disk (372) and a limiting ring (376). The limiting ring (376) is provided with a sliding hole (3762). The hydrogen inlet pipe (35) is slidably connected to a group of sliding holes (3762) away from the hydrogen exhaust pipe (36). The housing (32) and the device The mounting frame (31), the first motor (33), and the fixed disk (371) are all fixedly connected; the eccentric shaft (34) is fixedly connected to the output end of the first motor (33) and a group of eccentric disks (372) away from the hydrogen exhaust pipe (36); a vent hole (3711) is provided on the fixed disk (371); a first through hole (321) and a second through hole (322) are provided on the housing (32); the first through hole (321) is fixedly connected to the hydrogen inlet pipe (35); the hydrogen exhaust pipe (36) is fixedly connected to the second through hole (322) and a group of vent holes (3711) away from the first motor (33).

4. A hydrogen production and energy storage system according to claim 3, characterized in that: The vortex pressure mechanism (37) further comprises a first vortex rail (373), a second vortex rail (374), a first spring (375), a limiting ring (376), a second spring (377) and an eccentric column (378); a limiting frame (3712) is further provided on the fixed disk (371); a protrusion (3721) and a through groove (3722) are provided on the eccentric disk (372); a protrusion (3761) is further provided on the limiting ring (376); the first vortex rail (373) is fixedly connected to the fixed disk (371); the second vortex rail (374) is fixedly connected to the eccentric disk (372) and the eccentric column (378); The eccentric column (378) is fixedly connected to the adjacent eccentric disk (372), the eccentric column (378) is in contact with the vent (3711), the limiting ring (376) is in contact with the fixed disk (371), the eccentric disk (372), and the first spiral rail (373), the first spring (375) is fixedly connected to the limiting frame (3712) and the protrusion (3721), the limiting frame (3712) is slidably connected to the protrusion (3721), the second spring (377) is fixedly connected to the through groove (3722) and the protrusion (3761), and the through groove (3722) is slidably connected to the protrusion (3761).

5. A hydrogen production and energy storage system according to claim 1, characterized in that: The pressure relief mechanism (4) further comprises a throttle (44), the main valve (42) further comprises a first valve cover (422), the pilot valve (43) further comprises a second valve body (431), the first valve body (421) further comprises a first side hole (4212), the first valve cover (422) comprises a second side hole (4221), the second valve body (431) comprises a second bottom hole (4311) and a third side hole (4312), the throttle (44) is connected to the first side hole (4212) and the second bottom hole (4311) via a pipeline, and the second side hole (4221) is connected to the third side hole (4312) via a pipeline.

6. A hydrogen production and energy storage system according to claim 5, characterized in that: The main valve (42) further comprises a third spring (423) and a valve core cover (424); the first valve body (421) is further provided with a first pressure relief port (4213); the first pressure relief port (4213) is provided on a side of the first valve body (421) away from the first side hole (4212); the first valve cover (422) is fixedly connected to the first valve body (421); the third spring (423) is fixedly connected to the first valve cover (422) and the valve core cover (424); the valve core cover (424) is slidably connected to the first valve cover (422) and the first valve body (421); the first valve cover (422) and the valve core cover (424) form a main air chamber (425) on the upper side; the first valve body (421) and the valve core cover (424) form a pressure induction chamber (426) on the lower side.

7. A hydrogen production and energy storage system according to claim 5, characterized in that: The pilot valve (43) further comprises a second valve cover (432), a fourth spring (433) and a valve core column (435); the second valve cover (432) is fixedly connected to the second valve body (431) and the servo motor (434); a second pressure relief port (4313) is further provided on the second valve body (431); the second pressure relief port (4313) is provided on the side of the second valve body (431) away from the third side hole (4312); the fourth spring (433) is fixedly connected to the output end of the servo motor (434) and the valve core column (435); the valve core column (435) is slidably connected to the second valve cover (432) and the second valve body (431).

8. A hydrogen production and energy storage system according to claim 1, characterized in that: The pressure equalizing mechanism (5) further comprises a first gear (53), a second gear (54), a fan blade (55) and a crank (56); the second motor (52) is fixedly connected to the ring frame (51); the fan blade (55) and the crank (56) are each provided with a plurality of groups; the plurality of groups of the fan blade (55) and the crank (56) are evenly distributed along the circumference of the ring frame (51); the output end of the second motor (52) is fixedly connected to the first gear (53); the first gear (53) and the second gear (54) are meshed with each other; the second gear (54) is fixedly connected to a group of fan blades (55); the fan blades (55) are rotatably connected to the ring frame (51); and the fan blades (55) are hinged to the crank (56).

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